Abstract
Microbiological environments are a clear application area for microscale robotics, but targeted delivery of biochemical cues to particular cells or tissues remains a significant challenge. This challenge is compounded by the sheer number of cells that compose tissues. Multirobot system development has been limited due to challenges in discrete operation of several robots in a confined space. Here, we demonstrate the use of multiple diamagnetically levitated robots for delivering biochemicals dissolved in liquid in amanner compatible with light microscopy. Specifically, we show loading, transport, and diffusive release of fluorescent molecules in hydrogels with microscale precision, as well as induction of synthetically engineered bacterial cells with signaling molecules. This platform holds potential for impact and utility in fields, such as developmental biology, tissue engineering, and synthetic biology.
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